{"product_id":"apr-aprz1004081-ea825-ea839-9a2-iridium-pro-spark-plug-heat-range-10","title":"APR - aprZ1004081 - EA825\/EA839\/9A2 Iridium Pro Spark Plug, Heat Range 10","description":"Refresh your ignition system in one shot with APR Iridium Pro Spark Plugs and pair with APR Ignition Coils – engineered to work together for a stronger, more consistent spark. Each is a direct-fit upgrade designed to support smoother idle, sharper throttle response, and reliable performance under heat and load—whether you’re stock or running higher boost and power upgrades.\n12X26.5X14mm - Heat Range 10\nAlways check sizes, gap, and heat range specs before installing. Installation of the wrong length plug can cause damage to the engine. You must verify this before installing the plug.\n\u003cul\u003e\n  \u003cli\u003e152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum.\u003c\/li\u003e\n  \u003cli\u003eHeat range 10 spark plug (Similar: Bosch 2, Brisk 8, Denso 31, and NGK 10)\u003c\/li\u003e\n  \u003cli\u003e1 step colder older than OEM (2.9T\/3.0T EA829, 2.0T\/2.5T\/3.0T\/3.7T 9A2)\u003c\/li\u003e\n  \u003cli\u003eOptimized electrode design for hard to ignite fuels, such as ethanol\u003c\/li\u003e\n  \u003cli\u003eDesigned for high performance \/ tuned vehicle applications\u003c\/li\u003e\n  \u003cli\u003eCooler operating temperature than stock plugs\u003c\/li\u003e\n  \u003cli\u003eResists preignition better than stock plugs\u003c\/li\u003e\n  \u003cli\u003eAn excellent match for APR ignition coils\u003c\/li\u003e\n  \u003cli\u003e2 steps colder than OEM (4.0T EA825)\u003c\/li\u003e\n  \u003cli\u003eStronger than copper and platinum\u003c\/li\u003e\n  \u003cli\u003ePerfect for upgraded APR vehicles\u003c\/li\u003e\n  \u003cli\u003eLower required supplied voltage\u003c\/li\u003e\n  \u003cli\u003eNon-projected insulator design\u003c\/li\u003e\n  \u003cli\u003eSupplied Gap: .55mm +- .05mm\u003c\/li\u003e\n  \u003cli\u003eInsulator Material: Ceramic\u003c\/li\u003e\n  \u003cli\u003eThread diameter: 12mm\u003c\/li\u003e\n  \u003cli\u003eInstall Torque: 17 Nm\u003c\/li\u003e\n  \u003cli\u003eThread reach: 26.5mm\u003c\/li\u003e\n  \u003cli\u003eSeat Type: Gasket\u003c\/li\u003e\n  \u003cli\u003eMade in the EU\u003c\/li\u003e\n  \u003cli\u003eHexagon: 14mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRefresh your ignition system with the APR Iridium Pro Spark Plug, designed for high-performance and tuned vehicle applications. This heat range 10 plug features an optimized electrode design for hard-to-ignite fuels such as ethanol and operates at a cooler temperature than stock plugs. Its iridium construction offers a 152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum.\u003c\/p\u003e\u003cp\u003eThe APR Iridium Pro Spark Plug is supplied with a 0.55 mm gap plus or minus 0.05 mm and uses a non-projected insulator with a ceramic insulator material and gasket seat. It is described as one step colder than OEM for 2.9T\/3.0T EA829 and 2.0T\/2.5T\/3.0T\/3.7T 9A2 applications, and two steps colder than OEM for 4.0T EA825 applications. It is also designed as an excellent match for APR ignition coils.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Performance Benefits\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIridium Construction: Provides a higher melting point than silver, copper, and platinum.\u003c\/li\u003e\n\u003cli\u003eHigh-Performance Design: Intended for high-performance and tuned vehicle applications.\u003c\/li\u003e\n\u003cli\u003eOptimized Electrode: Supports ignition of hard-to-ignite fuels such as ethanol.\u003c\/li\u003e\n\u003cli\u003eCooler Operation: Runs cooler than stock plugs and resists preignition better than stock plugs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: APR\u003c\/li\u003e\n\u003cli\u003ePart Number: aprZ1004081\u003c\/li\u003e\n\u003cli\u003eHeat Range: 10\u003c\/li\u003e\n\u003cli\u003eThread Diameter: 12 mm\u003c\/li\u003e\n\u003cli\u003eThread Reach: 26.5 mm\u003c\/li\u003e\n\u003cli\u003eHexagon: 14 mm\u003c\/li\u003e\n\u003cli\u003eSupplied Gap: 0.55 mm plus or minus 0.05 mm\u003c\/li\u003e\n\u003cli\u003eInstall Torque: 17 Nm\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOne APR Iridium Pro Spark Plug. Fitment includes 2.9T\/3.0T EA829, 2.0T\/2.5T\/3.0T\/3.7T 9A2, and 4.0T EA825 applications as stated by the product data. Always verify plug size, gap, heat range, and required length before installation; installing the wrong-length plug can cause engine damage.\u003c\/p\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":68067541680380,"sku":"Z1004081","price":53.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/080d0767259f873ffea9c1ddc24d44f9L.jpg?v=1793733854","url":"https:\/\/diycustoms.store\/products\/apr-aprz1004081-ea825-ea839-9a2-iridium-pro-spark-plug-heat-range-10","provider":"diycustoms.store","version":"1.0","type":"link"}